the presence of excess fat in the stools, usually caused by disease of the pancreas or intestine, and characterized by chronic diarrhea and weight loss.
steatorrhea ste·a·tor·rhe·a or ste·a·tor·rhoe·a (stē'ə-tə-rē'ə, stē-āt'ə-) n. Excessive discharge of fat in the feces, as occurring in pancreatic disease and in malabsorption syndromes.